re-development works at east kidwai nagar, new

INDUSTRIAL TRAINING PRESENTATIONNBCC Limited

(National Buildings Construction Corporation Limited)(From 10th Jan 2015 to 10th Apr 2015)

PRESENTED BY:

SUBMITTED BY JASPREET SINGH

Section - D4CE1

Class R.No.110138

Univ. R.No.1283920

Department of Civil EngineeringGURU NANAK DEV ENGINEERING COLLEGE

LUDHIANA, INDIA

RE-DEVELOPMENT WORKS AT EAST KIDWAI NAGAR, NEW

DELHI

NBCC Limited (National Buildings Construction Corporation Limited), a Navratna organization under category I, is a Central Public Sector Undertaking which trades publicly in the market and is largely owned by Government of India. It primarily provides construction services in three segments:

• Project Management Consultancy (PMC)• Real Estate Development & Construction Business• EPC Contract

A redevelopment and densification project for a low density Government colony is proposed in Kidwai Nagar East by NBCC on behalf of MOUD, in the heart of Delhi right opposite Delhi Haat & AIIMS.

Information About Project

Brief on Redevelopment of Kidwai Nagar (East)

The construction of the work has been divided into 5 Nos. packages as given below:- I Package I

Commercial office space 4 blockII Package II

Primary school-1 no., Sr. Secondary school-2 no’s, LSC-1, Lal Quarters, Banquet hall- 1 no., Type VII-61 qtrs., ( 09 Tower ), Type VI-192 qtrs., ( 10 Tower )III Package III

Type-II (936qtrs.), (11 Tower), Type-III (1008 qtrs.), (12 Tower)

IV Package IVType V-680 qtrs. (12 Tower), Type-IV 606 qtrs., (7 Tower) Dispensary

V Package V Type-V-398 qtrs. (7 Towers), Type- IV 866 qtrs., (10 Towers)

Methodology for Execution of Work:

Master Plan

Accommodation Block No. 5

Specification of Single Dwelling Unit

Unit size 356.4 m2

Circulatio

n

42.8 m2

Total 487.5 m2

S.No. Room Type Size (mm)

1 PA Room 5330 x 5190

2 Office 4545 x 6015

3 Living/Dining Room 9070 x 6415

4 Kichen 3570 x 4500

5 Worship Place 3385 x 1405

6 Family Lounge 4665 x 5240

7 Master Bedroom 3450 x 6700

8 Bed Room 3950 x 4560

9 Bed Room 3300 x 4615

Detail of Type-VII Dwelling Unit:

CIVIL WORKS

EARTH WORK

RCC

SHUTTERING

REINFORCEMENT

BRICK WORK

FLOORING

FINISHING WORKS

MISCELLANEOUS WORKS

Site View On 12 January 2015

Site Clearance: - The very first step is site clearance which involves removal of grass and vegetation along with any other objections which might be there in the site location.

Layout for Excavation: - As the metro line tunnel passes below the construction area so coordinates are referred from INA Metro Station. Two arbitrary station points of known coordinates with reference to INA Metro Station Benchmark were marked with the help of a TOTAL STATION, thread and plumb bob as per the grid drawing near every block to be constructed.

Methodology Of Work

Total Station

Excavation: - Excavation was carried out both manually as well as mechanically.

Levelled bottom surface shall be compacted using smooth wheel rollers as per specifications.

Methodology Of Work

Compaction

Laying of P.C.C. (Plain Cement Concrete):- After the process of compaction and levelling, laying of plain cement concrete that is PCC is done. A layer of 100mm thick PCC of grade M10 with 100mm projections was made in such a manner that it was not mixed with the soil. It provides a solid base for the raft foundation and a mix of 1:4:8 that is, 1 part of cement to 4 parts of fine aggregates and 8 parts of coarse aggregates by weight were used in it. Plain concrete is vibrated to achieve full compaction.

Methodology Of Work

Total quantity of PCC required: 120 m3

Laying of P.C.C.

Finishing of P.C.C.

Waterproofing: The roof covering materials, siding, foundations, and all of the various penetrations through these surfaces need to be water-resistant and sometimes waterproof.

APP Membranes

APP Membranes:APP Waterproofing Membranes are mostly used to prevent leakage in various areas.

Methodology Of Work

Non-woven Fabric

Non-woven fabric is a fabric-like material made from long fibers, bonded together by chemical, mechanical, heat or solvent treatment. This fabric is used over APP membrane to prevent its puncturing due to reinforcement and concrete.

Methodology Of Work

50mm Thick Screed: It protects the waterproofing membrane from puncture if any by rebar's.

50mm Thick Screed: Layout: After screeding is done, layout of columns is done with the help of Total station. Two corner points for each column are marked on screed with the help of paint. Outline for raft as well as lift is also marked simultaneously.

Layout: After screeding is done, layout of columns is done with the help of Total station. Two corner points for each column are marked on screed with the help of paint. Outline for raft as well as lift is also marked simultaneously.

Methodology Of Work

Foundation: Two types of foundation were provided at site. Raft foundation was provided in tower area whereas isolated footings were provided in non-tower areas.

Raft foundationIsolated footings

Layout

Steel Quantity:- 850.94 quintal (with Chair 16mm ɸ @ 1m c/c)

Concrete Quantity:- 898.12 m3

Column:A column is an important component of RCC structure. It is a vertical member which is used to transfer the load of super structure such as super structure, floor, balconies, slab etc.

Methodology Of Work

Concreting of Column

Column With Cover BlocksSteel Quantity:- 35.9 quintals Concrete Quantity:- 133.745m3

Retaining wall:A retaining wall is a structure designed and constructed to resist the lateral pressure of soil when there is a desired change in ground elevation that exceeds the angle of repose of the soil.

Methodology Of Work

Laying of Beam and Slab: A structural member which supports lateral load and resist bending is known as beam. Slabs are plane structural member whose thickness is quite small as compared to its other dimension. Slab support mainly transverse loads and transfer them to end supports by bending action in one or more directions. Laying of Beam and Slab

Retaining wall

Methodology Of Work

Lift Is a vertical access that moves up and down inside a building and carries people from one floor to another floor. The lift frame is made of R.C.C. and construction method is same as other member.

Stair A series of steps or flight of steps that go from one level to another is called stair. The form work can be made up with plywood or framing lumber.

Stair

Lift

The Images shows the reinforcement in Stair and Lift

Methodology Of Work

Filler Board:This is capable of expansion and contraction which occurs with seasonal variations in temperature and are generally placed between two slabs or columns. Features of filler board are affordable, effective, and reliable

Filler BoardWaterbar: The function of waterbar is to seal the joint against water penetration. Waterbars may be necessary where the joint is subject to groundwater pressure or where the method of construction makes it difficult to accurately seal the surface cavity, and where it is very essential that there shall not be any risk of penetration of water.

Waterbar

Methodology Of Work

Waterbars may be of natural and synthetic rubber, polyvinylchloride (PVC) or metal. The strips shall be supplied in uniform lengths of 2.5 to 3.5 m at the option of the manufacturer, unless otherwise ordered

Finishing Work

Brick Wall

Internal and External Plastering on surfaces of Brick and Concrete.

Quality Control and Testing

Various tests which are done on different materials are listed below:

• Slump Test• Compressive Strength of Concrete• Weight of Steel• Silt Content• Grading of Aggregate• Impact Value Test• Compressive Strength of Brick• Water Absorption Test• Dimensional Tolerance• Determination of Moisture Content by Calcium Carbide

Method• Core Cutter Method


Determination of moisture content by using calcium carbide.This test is done to determine the water content in soil by calcium carbide method as per IS: 2720 (Part II) – 1973. It is a method for rapid determination of water content from the gas pressure developed by the reaction of calcium carbide with the free water of the soil. From the calibrated scale of the pressure gauge the percentage of water on total mass of wet soil is obtained and the same is converted to water content on dry mass of soil.

Apparatus required :-i) Metallic pressure vessel, with a clamp for sealing the cup, along with a gauge

calibrated in percentage water content.ii) Counterpoised balance, for weighing the sample.iii) Scoop, for measuring the absorbent (Calcium Carbide).iv) Steel balls – 3 steel balls of about 12.5mm dia. and 1 steel ball of 25mm dia.v) One bottle of the absorbent (Calcium Carbide).


Procedure to determine Water Content In Soil By Calcium Carbide Method• Set up the balance, place the sample in the pan till the mark on the balance

arm matches with the index mark.• Check that the cup and the body are clean.• Hold the body horizontally and gently deposit the leveled, scoop-full of the

absorbent (Calcium Carbide) inside the chamber.• Transfer the weighed soil from the pan to the cup.• Hold cup and chamber horizontally, bringing them together without disturbing

the sample and the absorbent.• Clamp the cup tightly into place. If the sample is bulky, reverse the above

placement, that is, put the sample in the chamber and the absorbent in the cup.• In case of clayey soils, place all the 4 steel balls (3 smaller and 1 bigger) in the

body along with the absorbent.• Shake the unit up and down vigorously in this position for about 15 seconds.


• Hold the unit horizontally, rotating it for 10 seconds, so that the balls roll around the inner circumference of the body.

• Rest for 20 seconds.• Repeat the above cycle until the pressure gauge reading is constant and note

the reading. Usually it takes 4 to 8 minutes to achieve constant reading. This is the water content obtained on wet mass basis.

• Finally, release the pressure slowly by opening the clamp screw and taking the cup out, empty the contents and clean the instrument with a brush.

Reporting Of Results

Designation Moisture Content

Sample 1 15%

Sample 2 10%

Safety Measure and Campaign

• In Civil engineering construction project, accidents cannot be avoided.

• A mishap can happen any time and unexpectedly during construction.

• About 80 percent of accidents are mainly caused due to unsafe practices and shear negligence of the workers. • Safety measures are necessary to motivate and

encourage the workers to work at the given site or industry without any fear, tension or worry in mind about his security of life.

• Good safety measures are essential to increase the output of work by generating safety free environmental sense of contentment among the workers.


Safety Helmets

Safety Nets


National safety day

• Maximize recovery of recyclable C&D material(s).

• Maximize reuse of recovered material in construction activity.

• Minimize waste quantity that requires landfill disposal.

• Ensure the proper disposal of C&D materials that cannot be recovered.

• Increase life of sanitary landfill site(s) and

• Reduce in total costs of C&D waste management.

Construction & Demolition Waste Recycling Plant

Objectives of C&D Waste’s Management

Recycle Products• By Processing C&D Waste we can produce Bricks/Concrete blocks,

pavement blocks and Kerb-stones.• Aggregate which can be used as sub-base in road construction.• Dirt / loose soil to be used for land filling.


NBCC Obligations•Area required for setting up plant is provided by NBCC. (1.00 Acre)•Supply of C & D Waste at Plant Site.•100% assured buy back of finished products i.e. Bricks from the said plant @ Rs 5.00 each

TECHNOLOGY• Producing the Bricks by Using Enzymes.• The EN-2 Enzyme is a synergistic mixture of enzymes, coenzymes,

binders, catalysts, wetting agents, surfactants and water. It is non-toxic and non combustible. It does not harm humans, animals, fish or vegetation under normal use and is totally biodegradable process. EN-2 have been tailored to provide the "lock" for numerous soil and other organic materials and promote the desired alteration of their properties, causing a rapid cementation process to occur.

The Advantages of Using EN-2 in the Brick Manufacturing• Reducing the cement quantity up to 50%.• Reducing the cost of manufacturing the brick.• Reducing water absorption in the brick.• Maintaining the strength of the product. • Reducing water use during the process.


Information about Plant and Equipment

Concrete Mixer Plant

Transit Mixer

Mixer plant provides the facility to mix the various ingredients of concrete in required proportions at the in order to fulfil the quantities of concrete and without more lead distance. A concrete plant, also known as a batch plant, is a device that combines various ingredients to form concrete

It is used to transport the concrete from the place of production to the site. Nominal capacity of Transit mixer is 6M3 and Total Geometric volume is 9M3. It is a equipment which is used for transporting the concrete from batching plant directly to the place where it is to be poured


Immersion or Needle Vibrators

Bar Cutting Machine

Bar Straightening Machine

Bar Bending Machine


Tower CraneHydra (Cranes):

Backhoe LoaderConcrete Trailer PumpsRoller

Contractor bill

DESCRIPTION UNIT QUANTITY

L/C For Non tower and tower area beam bottom

and shuttering and de-shuttering work

Sq. m 82.767

L/C for Non tower and tower area slabs shuttering

and de-shuttering works

Sq. m 107.851

Sq. m 190.618

De shuttering purpose hold 40% Sq. m 76.000

Total bill quantity Sq. m 114.618

Shuttering work at block-05Name of contractor:- Dharmesh Kumar Jha

Contractor bill

Site View On 8 April 2015

The entire period of Industrial Training has given me good & important practical exposure of construction work. At the end of the Industrial Training under NBCC, New Delhi I feel myself better equipped and ready to face the field problems related to Civil Engineering works. In these four& half months, I have learnt how to deal with Authorities and workers under supervision and I have become familiar with the fact that the field work is much difficult from theoretical knowledge. But until you don’t have the theoretical knowledge, the practical work is very difficult to carry-out and understand.

Conclusion

re-development works at east kidwai nagar, new

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